The D70 has a somewhat weaker AA filter than the D200. Many of you will remember that moire concerns burned up almost as much bandwidth when the D70 was introduced as banding worries did when the D200 came out (I own both cameras and haven't been troubled with either moire or banding except in very unusual, limited cases). I think if Nikon had asked my advice on how strong to make the AA filter on the D200, I'd have said to make it just like the one on the D70. Nevertheless, I've been very pleased with the amount of detail that the D200 can achieve.

The problem is that without an AA filter edge contrast may be improve, but the real resolution will be degraded by aliasing. Moire is only one of the manifestations of this aliasing. It sounds like they are trying to make a quick buck off of those who don't understand digital sampling of band limited signals. One solution would be an improved AA filter with sharper cutoff and less degradation (blur) below the Nyquist frequency. However, this requires invention, or a change in the laws of physics. The traditional alternative is the continued increase in the Nyquist frequency, by adding more megapixels. Camera manufacturers like this approach because it makes them more money.

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